After graduating from Keio University, he joined NTT, where he was involved in corporate planning, accounting, general affairs, human resources, and secretarial work.

He transferred to NTT Docomo, where he was in charge of M&A, mainly in Europe, and after earning an MBA from MIT Sloan School of Management, he led the overseas development of mobile Internet services (i-mode), the launch of the NTT Group's CVC, start-up investments, and the planning of healthcare and corporate services. He has also been engaged in management of subsidiaries and start-up support.